David Clark 9100 SERIES Installation & Operation Manual
Also see for 9100 SERIES: Maintenance manual
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Contents
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4719549P-31 (04-17)11. Add-In CardsAdding/Removing Master Station Add-in CardsTo add or remove an add-in card the Master Station must be opened. The procedure below must befollowed correctly to maintain IP67 integrity and to prevent damage to the Master Station and Add-inCards.Parts/Tools Requiredq #1 and #2 Philips bitsq Torque wrench capable of measuring 2 - 6 lbf-in (20 - 70 N-cm) of torqueProcedureDisassembly1. Disconnect all radio and Ethernet cables from the Master Station. Mark them if necessary forreconnection later.2. Remove the six main cover screws (Figure 11.1).3. Remove the enclosure bottom.4. Disconnect the power cable assy from the main PCB assy (Figure 11.2).5. Remove the four screws which attach the main PCB assy to the standoffs (Figure 11.3).6. Gently remove the main PCB assy from the cover assy and set aside.Adding card(s)1. Remove the eight screws from the blank plate and remove the plate (Figure 11.4).2. Ensure there are gaskets on each of the four ports of the card and that no leftover gaskets arestuck to the backside of the front panel.3. Insert the new card into the plastic cover and tighten the eight screws to 3 lb-in (34 N-cm).Removing card(s)1. Remove the eight screws from the card and remove the card (Figure 11.4).2. Ensure there are gaskets on each of the four ports of the blank plate and that no leftover gasketsare stuck to the backside of the front panel.3. Insert a blank plate into the plastic cover and tighten the eight screws to 3 lb-in (34 N-cm).Reassembly1. Gently attach the main PCB assy to the cover assy, ensuring the “fingers” on the add-in cards line upwith and insert fully into the connectors on the main PCB assy (Figure 11.3).2. Tighten the four screws which attach the main PCB assy to the standoffs to 2 lb-in (23 N-cm).3. Reconnect the power cable assy to the main PCB assy (Figure 11.2).4. Place entire assembly back into enclosure bottom (Figure 11.1).5. Replace the six main cover screws and tighten to 6 lb-in (68 N-cm).STATIC HAZARD – Static electricity can damage components.Therefore, be sure to ground yourself before handling components.IMPORTANT: Failure to observe torque specifications will result ina compromise of IP67 integrity. |
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